Abstract: The disclosure provides a medical sealant glue capable of promoting wound healing and a preparation method thereof. The medical sealant glue is formed by covalent cross-linking of two components after being physically mixed by a mixing tool, wherein the first component is a nucleophilic component, and the second component is an electrophilic component. The medical sealant glue has a gelation time of 1-10 s, a swelling ratio of 0-100%, a bursting strength of 100-250 mmHg, and a degradation time of 0.5-300 days. The nucleophilic component of the medical sealant glue contains exosome or hyaluronic acid and chitosan, and thus the medical sealant glue not only has the effect of promoting wound healing, but also has antibacterial and anti-infection effects.

Abstract: A method for forming a forming part with an inclined surface and a forming part with an inclined surface wherein the forming method comprises: obtaining a model of the part to be formed; performing layer separating and slicing process to form a plurality of forming layers; a performing scanning path planning on each forming layer, wherein a suspended area and a non-suspended area are provided in a plurality of forming layers forming the inclined surface, frame scanning path comprises a first path and a second path, the first path corresponds to the non-suspended area and the second path corresponds to the suspended area; based on the size of the angle of inclination, setting process parameters for the first path and the second path, and printing layer by layer based on the set process parameters; wherein an energy density in the process parameters of the first path is smaller than an energy density in the process parameters of the second path.

Abstract: This application provides techniques of searching images. The techniques comprise monitoring a moving state of a first computing device; controlling the first computing device to obtain an image comprising a target object to be searched in response to determining that the moving state of the first computing device meets a preset condition; determining a first coordinate group of the target object in the image; acquiring a target image of the target object from the image based on the first coordinate group; determining, based on the target image, a search result related to the target object and displaying the search result.

Abstract: An electronic device includes a cell, a circuit board, and a cell protection unit. The circuit board is provided in the electronic device and configured to control the electronic device. The circuit board is electrically coupled to the cell, and the cell protection unit is provided on the circuit board. The cell protection unit is integrated with the circuit board, so as to facilitate heat dissipation of the cell, prolong the service life of the cell, speed up the production cycle of the cell, and reduce the production cost of the cell.

Abstract: The present disclosure relates to a growth hormone fusion protein and a preparation method and use thereof. The growth hormone fusion protein includes: a double-stranded structure having a first constant region Fc segment and a second constant region Fc segment; and a growth hormone linked to the first constant region Fc segment, the growth hormone has no methionine at an N-terminus thereof, and the growth hormone fusion protein was expressed by a non-mammalian cell expression system. According to the present disclosure, by adopting the fusion of the growth hormone and the double-stranded structure, the in vivo half-life of the growth hormone can be prolonged, and since each double-stranded structure only carries one growth hormone, the active site of the growth hormone is not affected by steric hindrance, and stronger activity is provided, and since the N-terminus of the growth hormone has no methionine, higher safety is provided.

Abstract: A method for generating spread-spectrum synchronous clock signals includes comparing an input signal of a first frequency with a feedback signal of a second frequency in a loop of feedback; generating a first control signal and a second control signal; determining an integer part I of a control word F to track the first frequency; registering n levels for the first control signal and the second control signal to introduce n phase delays for randomly changing a fraction part r (0<r<1) of the control word F to provide a broadened boundary in frequency spectrum; and generating a synthesized periodic signal with the second frequency based on a base time unit ?, the first frequency, and the control word F, the synthesized periodic signal being fed back as the feedback signal in the loop of feedback and outputted with the second frequency being locked within the broadened boundary.

Abstract: A project disaster warning method and system based on collaborative fusion of multi-physical field monitoring data is provided.

Abstract: A self-contained actuator for use in a robot manipulator includes: a housing, in which are arranged in axial sequence a gear, a motor, a brake, a sensor and a motor drive. The motor drive includes wide-bandgap/WBG electronics and is arranged in heat-dissipating relationship with a free end of the housing. Through the motor and some further components, there is provided a central channel for receiving a cable connected to at least one further actuator of the robot manipulator. The channel may be angled or straight. In embodiments where the motor drive is hollow, the central channel extends between the axial ends of the actuator. There is further provided an all-in-one industrial robot comprising a robot manipulator, in which one or more self-contained actuators with the above characteristics are installed and a robot controller is physically integrated.

Abstract: An apparatus includes a controller configured to generate a PWM signal for controlling a power switch of a forward converter, a bias switch and a bias capacitor connected in series and coupled to a bias winding of the forward converter, and a comparator having a first input connected to the bias capacitor, a second input connected to a predetermined reference and an output configured to generate a signal for controlling the bias switch to allow a magnetizing current from the bias winding to charge the bias capacitor when a voltage across the bias capacitor is less than the predetermined reference.

Abstract: The present application discloses a circuit for generating spread-spectrum synchronous clock signal. The circuit includes a frequency detector comprising a fraction controller configured to compare an input signal of a first frequency with a feedback signal of a second frequency in a loop of feedback to generate a first control signal and a second control signal alternately for determining a control word to track the first frequency and a phase-shift controller configured to register n levels for the first control signal and the second control signal to introduce n phase delays for changing a fraction part of the control word randomly to provide a broadened boundary. The circuit also includes a digitally controlled oscillator configured to generate a synthesized periodic signal based on a base time unit, the first frequency, and the control word, with the second frequency being locked within the broadened boundary of the first frequency.

Abstract: A data processing method, including: obtaining a challenge sequence of challenge-response pairs, and generating, by a physical unclonable function, an original response sequence corresponding to the challenge-response pairs; generating a first index parameter according to the challenge sequence, and obtaining feature bit information in the original response sequence according to the first index parameter; converting the challenge sequence to generate a second index parameter, and updating the first index parameter according to the second index parameter and the feature bit information; obtaining new feature bit information in the original response sequence according to the updated first index parameter; and repeatedly generating second index parameters, updating the first index parameter according to the second index parameters and the latest obtained feature bit information, and obtaining multiple pieces of feature bit information, to generate a target response sequence according to the multiple pieces of fe

Abstract: Methods are provided for modulating MRGPR X4 generally, or for treating a MRGPR X4 dependent condition more specifically, by contacting the MRGPR X4 or administering to a subject in need thereof, respectively, an effective amount of a compound having the structure of Formula (I): or a pharmaceutically acceptable isomer, racemate, hydrate, solvate, isotope, or salt thereof, wherein n, x, A, Q1, Q2, Z, R, R1, R2, R3, R4 and R5 are as defined herein. Pharmaceutical compositions containing such compounds, as well as to compounds themselves, are also provided.

Abstract: According to one aspect, an apparatus comprising a two stage DC-DC converter is provided. The converter consists of a multilevel DC-DC converter stage cascaded with a fixed voltage ratio DC-DC converter stage. The converter is controlled so that a first stage of the converter provides an optimized output (a regulated bus voltage) which serves as the input to the second stage. The multilevel DC-DC converter may be the first stage and the fixed voltage ratio, unregulated DC-DC converter may be the second stage converter. Alternatively, the fixed voltage ratio, unregulated DC-DC converter may be the first stage and the multilevel DC-DC converter may be the second stage.

Abstract: Novel tools and techniques are provided for implementing mixed dielectric materials for improving signal integrity of integrated electronics packages or semiconductor packages. In various embodiments, a substrate for a semiconductor device includes: a first layer made of a first material; a second layer made of a second material; and a third layer disposed between the first and second layers, and that is made of a third material different from the first and second materials. In some cases, the first, second, and third layers each contains a plurality of gas-filled regions (e.g., but not limited to, an aerogel core of the third layer and/or polymer resin matrix embedded with hollow silica spheres or aerogel spheres of the first and second layers, or the like). Coaxial ground shields around signal lines in the substrate can be used to improve signal integrity. High dielectric constant lossy lines between signal lines can reduce crosstalk.

Abstract: Provided is a security protection method for a heterogeneous system, wherein the heterogeneous system includes a processor. The processor includes a first region, wherein the first region includes a physical unclonable function circuit. The method includes: detecting whether an input of the heterogeneous system is abnormal; acquiring a configuration file in response to the input of the heterogeneous system being detected as abnormal, wherein the acquired configuration file is different from a configuration file of the physical unclonable function circuit that has run; and reconstructing, on the processor, a mapping of the physical unclonable function circuit based on the acquired configuration file.

Abstract: A method of operating a chiller to avoid future surge events, the method comprises applying chiller operating data associated with a chiller as an input to one or more machine learning models; and generating a threshold for a controllable chiller variable to prevent a future chiller surge event from occurring based on an output of the one or more machine learning models, further comprising affecting operation of the chiller based on the threshold to prevent the future chiller surge event from occurring. The method enables automatic control of a chiller to avoid future chiller surge events.

Abstract: A collaboration platform provides a collaboration user interface (“UI”) through which a user can request a recommendation of an artificial intelligence (“AI”) model for performing entity extraction on documents in a document library maintained by the collaboration platform. In response to receiving such a request, the collaboration platform can select candidate documents from the documents in the library and process the candidate documents using AI models configured to extract entities from the one or more documents. The collaboration platform can then select one of the AI models based on the processing. The collaboration platform can also provide functionality for performing automated document tagging using term sets on documents maintained by the collaboration platform.

Abstract: Disclosed are a fuel cell polar plate structure and a fuel cell stack, including a battery block comprising a bipolar plate, carbon papers, water-holding sheets and a proton exchange membrane; said bipolar plate has a reaction bath opened on the outer surface of each polar plate body; the front and rear sides of the reaction bath are provided with water crossing ports formed with grooves extending into the reaction bath; the fuel cell stack comprising a plurality of battery blocks, current collectors, insulating plates and end plates, wherein said battery blocks being stacked end to end to form a battery pack, and pressure-adjustable fixing mechanisms are fixed to the outer surfaces of the end plates. The independent anti-dry design improves the power generation effect and the fixing pressure regulating structure facilities controlling of the pressure between the polar plates and slows down the aging of the sealing ring.

Abstract: A riser tube coating for a cast aluminum alloy includes a coating-riser tube contact layer material and a coating-aluminum liquid contact layer material. The present invention has a coating protection effect to the maximum mainly by designing ratios of ZrO, Al2O3, ZnO, binders and other materials and a coat drying heat treatment process, and finally realizes effects of protecting a riser tube, being free of aluminum sticking and prolonging a service life.